Improvement in gas-governors



- G. s. WOODRUPP.

Gas-Governor,

No. 221,950. Patented Nov. 25, I879.

MPEYERS, FHUTO-UTHOGRAPHER. WASHINGTON n C UNITED STATES- PATENT OFFICE.

GEORGE S. WOODRUFF, OF GRAND RAPIDS, MICHIGAN.

IMPROVEMENT IN GAS-GOVERNORS.

Specification forming part of Letters Patent No. 221,950, dated November 25, 1879 application filed July 15, 1879.

To all whom it may concern:

Be it known that I, GEORGE SMITH WOOD- RUFF, of the city of Grand Rapids, in the county of Kent and State of Michigan, one of the United States "of America, gentleman, now temporarily residing in the city of Toronto, Province of Ontario, Canada, have invented certain new and useful Improvements in Gas-Governors, which improvements are fully set forth in the following specification and accompanying drawings.

The object of the invention is to make an automatic non-odorous gas governor, constructed as hereinafter explained.

Figure 1 is a sectional elevation through as y. Fig. 2 is a sectional plan through 2 10.

In the drawings, A represents the metal case; B, a cover bolted to it, the joint being made gas-tight. O is a circular curved flange, forming part of the case A.

In the center of the case, immediately around the inlet-port, is cast or fitted an inwardlyprojecting pipe, D, extending a little above the bottom of the side or wall E, forming the outlet-pipe leading to the riser F.

G is a diaphragm, made of leather or other suitable flexible material, bolted or otherwise fastened to the curved flange (3. The cutoffvalve spindle H passes through the center of the diaphragm, and is secured in position by the nuts I, the cup-shaped. washers J being placed between the nuts and diaphragm, on either side of the latter, as shown, so as to protect the diaphragm from cutting by preventin gits coming in contact with any sharp edges.

K is a small passage connecting the chamber above the diaphragm with the riser F. This passage is intended for the double purpose of admitting gas into the upper portion of the chamber, and when the gas is turned off at the meter it affords a free passage for the escape of the gas therein, avoiding thereby the unpleasaut odors caused by the condensation of the gas upon the flexible diaphragm.

As it may sometimes be necessary to close the passage K, I place a cock, L, in the position shown.

The cut-oft valve M is attached to the spindle H, and fits against the valve-seat N within the chamber 0, as shown.

The diaphragm G is actuated by the action of the gas admitted into the casing A in such a manner that the valve M opens and closes according to the quantity of gas required to supply the burners in usethat is to say, it is so adjusted that suff cient gas is admitted to supply all the burners connected to the service. As each one is turned off a backpressure is produced, which, acting against the bottom of the diaphragm G, forces it up, and thus, by closing the valve M, proportionately reduces the pressure at the burners.

The relative position of the pipes D and E directs the pressure of the gas against the diaphragm, whether entering at E or returning as back-pressure through E.

WVhat I claim as my invention is-- A metal case, A, having an inwardly -projecting pipe, D, situated immediately below the center of the flexible diaphragm G, and an inwardly-projecting pipe, E, extending immediately belpw the riser and situated on the inside of the said case, in combination with the flexible diaphragm G, supported by the curved flange G. and connected to the cut-off-valve spindleH by the cup-shaped washers J and nuts I, arranged substantially as and for the purpose specified.

Dated at Toronto this 28th day of May, 1879.

GEO. S. VVOODRUFF.

Witnesses:

JOHN G. Rinoirr, DONALD 'G. RIDOUT. 

